Explain in just a few sentences

Explain in just a few sentences.....

1. In the Arrow Sermon, the Buddha tells the story of a man shot by a poisonous arrow and asks, "What would that man do? Would he ask a series of questions about the caste and skin color of the shooter? Or the type of bow or bowstring employed? Or whether the arrow flew on vulture or peacock feathers?" What is the meaning of these questions and how does this affect or change many Americans' definition of "religion"?

2. How does Mahayana Buddhism differ doctrinally from contemporary Theravada Buddhism and the mainstream Buddhism of ancient India? Do we see large related differences in practice?

3. How does the origin story of the Buddha wordlessly raising one single flower before an assembly of monks and nuns relate to the fundamentals of Zen/Chan doctrine?

4. One of the main perceptions of Buddhism is that meditation is central to Buddhist practice, but Buddhists engage in a variety of other practices. Detail some of these practices and explain how they relate toward the goal of achieving enlightenment.